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| author | Andy Lutomirski <luto@kernel.org> | 2015-07-23 15:37:48 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-28 18:39:24 +0200 |
| commit | 3681c24a7d096b092cf05c8338adbb9019bb1536 (patch) | |
| tree | b5256f920441117199c243d7820490ecb2d428d4 /arch/x86/events/intel/uncore_snbep.c | |
| parent | f9ed24457265f2dac9fa80a20d8d546b201b5540 (diff) | |
x86/entry/64: Don't use IST entry for #BP stack
commit d8ba61ba58c88d5207c1ba2f7d9a2280e7d03be9 upstream.
There's nothing IST-worthy about #BP/int3. We don't allow kprobes
in the small handful of places in the kernel that run at CPL0 with
an invalid stack, and 32-bit kernels have used normal interrupt
gates for #BP forever.
Furthermore, we don't allow kprobes in places that have usergs while
in kernel mode, so "paranoid" is also unnecessary.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/events/intel/uncore_snbep.c')
0 files changed, 0 insertions, 0 deletions